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a large waterfall with a boat in the middle of it

Ontario

A trip to Ontario often pairs Toronto and Niagara Falls with Ottawa, the national capital, and river and lake towns farther east.

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Ontario is a province in eastern Canada, on the Great Lakes and the US border. Toronto, the provincial capital and Canada's largest city, is where many first trips begin. Ottawa, the national capital, sits on the Ottawa River near the Quebec border. Niagara Falls lies on the Niagara River, which links Lake Erie and Lake Ontario, and the St. Lawrence River flows out of Lake Ontario past the Thousand Islands and Kingston.

The province suits a first trip that mixes big cities with water and parks: museums and restaurants in Toronto, the falls and the wine country of the Niagara Peninsula, and quieter river towns in the east. Summer is the best season for lakes, boat trips and outdoor time. Late September and October bring fall color. Winter is cold. A week lets you see Toronto, Niagara Falls and Ottawa at a steady pace. The eastern river towns need more time.

Ontario in five

  1. Get an eTA before you fly inMost visa-exempt visitors who arrive by air need an eTA, applied for online before the flight. US citizens do not need one.Visas and entry
  2. Pick Toronto or Ottawa as your baseToronto to Ottawa is about 4.5 hours by car, so choose one city as the base and treat the other as a separate trip. Toronto Pearson is the main international airport.Toronto
  3. Rent a car for the Thousand IslandsBoat tours and villages around Gananoque are spread out. Kingston is an easy train trip from Toronto without a car.Thousand Islands
  4. Carry a card and some Canadian dollarsTap-to-pay cards work in most city shops and restaurants, but small stalls and some rural shops prefer cash. Tip 15 to 20 percent at restaurants.Money and costs
  5. Set up an eSIM or offline mapsSignal can be patchy on rural roads and island crossings, so download maps before you leave.Phones and eSIM
a large waterfall with a boat in the middle of it

Niagara Falls

  • Price band: $$

Things to do in Ontario

See all attractions in Ontario

Need to know

Currency
Canadian dollar (CAD)
Entry
Visa-free for many passports; eTA by air for most visa-exempt visitors Read more
Emergency
911 for police, fire and ambulance
Tipping
15 to 20% at restaurants and bars; round up for taxis
Time
UTC-5 Eastern, UTC-4 in summer

Weather by month

    • Best
    • Good
    • Mixed
    • Poor
    1. JanuaryCold, snow
    2. FebruaryWinterlude, cold
    3. MarchThaw, grey
    4. AprilEarly spring
    5. MayGreen, long days
    6. JuneWarm, long days
    7. JulyHot, busy
    8. AugustHot, lake season
    9. SeptemberWarm, quieter
    10. OctoberAutumn color
    11. NovemberCold, grey
    12. DecemberCold, holidays

    Right now in Ontario

    Local time, today's weather and the exchange rate, refreshed through the day.

    Cloudy

    15

    Feels like
    14°
    Humidity
    88%
    Wind
    7 km/h
    Chance of rain
    40%

    Ontario

    05:37 PM

    Monday, November 2

    GMT-5

    1. Today16°11°40%Monday: Cloudy. High 16°, Low 11°. Chance of rain 40%.
    2. Tue14°11°90%Tuesday: Rain. High 14°, Low 11°. Chance of rain 90%.
    3. Wed15°10°91%Wednesday: Rain. High 15°, Low 10°. Chance of rain 91%.
    4. Thu12°0°91%Thursday: Snow. High 12°, Low 0°. Chance of rain 91%.
    5. Fri0°-3°63%Friday: Snow. High 0°, Low -3°. Chance of rain 63%.
    6. Sat2°-3°6%Saturday: Cloudy. High 2°, Low -3°. Chance of rain 6%.
    7. Sun2°-4°10%Sunday: Fog. High 2°, Low -4°. Chance of rain 10%.

    Updated 03:47 PM local time · Weather data by Open-Meteo.com

    Money

    Mid-market rate1 USD = 1.397 CAD

    CAD · Canadian Dollar

    Rates from Nov 2, 2026 · Rates By Exchange Rate API

    Before you go to Ontario

    eSIM for OntarioSignal gaps on rural roads and islandsRead the guide
    Travel insurance for OntarioVisitors are not covered by OHIPRead the guide
    Where to stay in OntarioToronto, Ottawa and Niagara Falls basesRead the guide
    Getting around OntarioRail, buses and the 407 toll roadRead the guide

    Rules for Ontario, checked

    • Crossing into the United States at Niagara Falls needs a passport or another document that meets US land-border rules; check the current list before you go.Source
    • Highway 407 near Toronto uses electronic tolls only; rental cars pass the tolls on, often with an admin fee, so ask the rental company how it bills them.Source
    • Declare goods on arrival; the Canada Border Services Agency sets limits on the alcohol and tobacco you bring in.

    Ontario FAQ

    Which Ontario city should I visit first?

    Toronto for the big city and the main international airport. Add Ottawa for the capital, or Niagara Falls for the falls, depending on how many days you have.

    Do you need a car in Ontario?

    Not for Toronto, Ottawa or Kingston, which are linked by train. A car helps for the Thousand Islands, where boat tours and villages are spread out.

    How many days do you need in Ontario?

    Four to five days for Toronto and a day trip to Niagara Falls. Add two days for Ottawa and one for Kingston.

    When is the best time to visit Ontario?

    June, September and October for mild weather. Autumn color peaks in late September and October, while winter is cold, with snow from December.

    Can you visit Niagara Falls from Toronto in one day?

    Yes. It is about 1.5 hours by car from Toronto, and buses and organized tours run from downtown.

    Do you need to speak French in Ontario?

    No. English is the main language across most of Ontario. Ottawa is bilingual, and its Vanier district is French-speaking.